Permanent is used mostly for lighter colors or resistant greys. Semi and demi permanent are used to cover when there aren’t that many greys, when doing relaxer on the same day, and going back to natural color.

Virgin Brazilian and Indian hair are both great unprocessed as they can be colored and won’t tangle. A website that I found that is doing something similar to me is haircandysalon.com. They had a lot of helpful information.